NEW During the summer months, CDPH will issue the Chicago Respiratory Virus Weekly Surveillance Report, which summarizes key respiratory virus surveillance indicators. The indicators are compiled from laboratory-based data as well emergency department visit data. The online influenza dashboard, which summarizes influenza-specific surveillance indicators, will continue to be updated. Chicago Department of Public Health’s respiratory surveillance report for the week of 07/24/2022-07/30/2022 has been published. Please see the attachment for the full report.

Key points for the week:

COVID-19:

Chicago’s local COVID-19 Community Level is High.
The number of new cases decreased from last week but remains elevated.
New hospitalizations per 100,000 population in the last 7 days has increased from 4.9 to 5.6.
The 7-day average of the proportion of staffed inpatient beds occupied by COVID-19 patients increased from 4.3% to 4.8%

Influenza:

The risk of influenza infection is low; the percent of specimens testing positive for influenza is below one percent.
The proportion of emergency department visits for influenza-like illness (ILI) is below local thresholds.
Clinicians should review guidelines for prescribing influenza anti-viral medications as prophylaxis or empiric treatment.
CDC has issued a report that summarizes influenza activity for the 2021-2022 season and describes the composition of the Northern Hemisphere 2022-23 influenza vaccine.

Other Respiratory Viruses:

Respiratory syncytial virus (RSV) activity remains low.
The percent of specimens testing positive for parainfluenza remains elevated, but has been decreasing for the past several weeks; the majority of positive specimens have been parainfluenza type 3 which usually occur in the spring and early summer months.

About this report: This report summarizes key respiratory virus surveillance indicators. The indicators are compiled from lab-based data as well emergency department visit data. This report is meant to provide more context for the ongoing COVID-19 pandemic, particularly as co-circulation of respiratory viruses increases. More detailed information on influenza and COVID-19 activity can be found on their respective online dashboards. This report is updated on Fridays for the previous Saturday through Sunday. On all graphs, the week ending date is displayed. Ending dates are accurate for the current season but are approximations for all other years. All data presented here are preliminary and may change as more reports are received. Reported percentages for previous seasons represent final, end of season data and may differ from previously published reports.

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